Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-30
AIP Conf.Proc.1312:39-48,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, lecture presented at the Relativistic Fluids Symposium in the IV Mexican Meeting on Mathematical and Experimental Ph
Scientific paper
10.1063/1.3533204
For a dense and strongly interacting system, such as a nucleus or a strongly-coupled quark-gluon plasma, the foundation of hydrodynamics can be better found in the quantum description of constituents moving in the strong mean fields generated by all other particles. Using the result that the Schroedinger equation and the Klein-Gordon equation can be written in hydrodynamical forms, we find that the probability currents of the many-body system in the mean-field description obey a hydrodynamical equation with stress tensors arising from many contributions: quantum effects, mean-field interactions, and thermal fluctuations. The influence of various contributions to the hydrodynamical motion is expected to vary with the temperature, as the quantum and mean-field stress tensors playing more important roles at low and moderate temperatures.
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